Power supply connectors and adaptors for use with portable electronic devices; Voltage stabilizing power supply; Renewable battery system to provide backup power; DC/AC power converters; Power supplies for lights, sirens and public address systems; Electronic power supplies for driving electric motors; Inverters for power supply; Power adapters for computers; Power supplies; Charging appliances for rechargeable equipment; Portable power chargers; High-voltage power supplies; Low-voltage power...